Cinematronic PCB's and Horizontal Sync Frequencies

[baseballburk]

Put a 1k resistor inline on sync and see if that helps. They lock on solid for me.

New problem for me, when I start a game up, the picture is good. Well, it's what it's always been. All good except for top 3/4 of an inch being a little wiggly. However, by the 3rd inning, the picture is super unstable. It gets worse with time now. Do you think it could be any sort of hardware issue?

 

[SCUBA King]

New problem for me, when I start a game up, the picture is good. Well, it's what it's always been. All good except for top 3/4 of an inch being a little wiggly. However, by the 3rd inning, the picture is super unstable. It gets worse with time now. Do you think it could be any sort of hardware issue?

This one is very hard to diagnose as every adapter/converter wont work with every game. So seeing these strange anomalies is sometimes just a glitch in the matrix or sometimes it is a hardware problem but no way to know for sure.

Having a ability to plug in to a CRT is the best way rule it out, otherwise you could be chasing your tail trying to find a hardware problem that may or may not exist.

If you know anyone local who has another cinne game, a lot of the harness, power and video especially are the same so you may not be able to get all the way to the third inning easily with mis-mapped inputs.

 

[baseballburk]

Here's what I figured out. I took apart all of my video harness connections to the upscaler. I had twisted the wires together and the picture went back to what it was always doing. No longer getting unstable as the game goes on. Then I adjusted the screen to just cut off the top 3/4" and that's my workaround until I can afford a nice Wells Gardner arcade LCD. It only cuts off a little bit of the words on instruction screens. It doesn't hurt gameplay at all and I now have a totally playable game. Not ideal, would rather have every little bit of screen visible but it's a blast and not visually distracting like that twitching at the very top was.